IMAGE ACQUISITION METHOD, DEVICE AND RADIOGRAPHY SYSTEM
First Claim
1. An image acquisition method for imaging regions of interest of patients by a radiography system that includes a tube and a detector disposed on opposite positions, said image acquisition method comprising:
- determining starting and an ending position of a region of interest, and a value of an overlap of the region of interest in two adjacent sub-images;
calculating a number of sub-images required to be captured, a component of field of view at a direction of tube movement, and positions of the tube and the detector corresponding to each sub-image based on the starting position and the ending position of the region of interest and the value of the overlap;
moving the tube and the detector to each position and capturing the region of interest to obtain sub-images at the positions; and
pasting the sub-images together to form an image of the region of interest.
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0 Petitions
Accused Products
Abstract
An image acquisition method includes determining the starting position, the ending position of a region of interest, and the value of overlap of the region of interest in the two adjacent sub-images, calculating the number of the sub-images required to be captured, the component of field of view at the direction of tube movement and the positions of the tube and the detector corresponding to each sub-image based on the starting position and the ending position of a region of interest and the value of the overlap. The method also includes moving the tube and the detector to each position and capturing the region of interest to obtain sub-images at the positions, and pasting the several sub-images together to form an image of the said region of interest.
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Citations
20 Claims
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1. An image acquisition method for imaging regions of interest of patients by a radiography system that includes a tube and a detector disposed on opposite positions, said image acquisition method comprising:
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determining starting and an ending position of a region of interest, and a value of an overlap of the region of interest in two adjacent sub-images; calculating a number of sub-images required to be captured, a component of field of view at a direction of tube movement, and positions of the tube and the detector corresponding to each sub-image based on the starting position and the ending position of the region of interest and the value of the overlap; moving the tube and the detector to each position and capturing the region of interest to obtain sub-images at the positions; and pasting the sub-images together to form an image of the region of interest. - View Dependent Claims (2, 3, 4, 12, 13)
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5. An image acquisition device for imaging regions of interest of patients with a radiography system that includes a tube and a detector disposed on opposite positions, said image acquisition device comprises:
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a determination unit configured to determine a starting and an ending position of a region of interest, and a value of an overlap of the region of interest in two adjacent sub-images; a calculation unit configured to calculate a number of sub-images required to be obtained, a component of field of view at a direction of tube movement as well as a plurality of positions of the tube and the detector corresponding to each sub-image based on the starting position and the ending position of the region of interest and the value of the overlap; a capturation unit configured to move the tube and the detector to each position and to capture the region of interest to obtain sub-images at the plurality of positions; and a pasting unit configured to paste the sub-images together to form an image of the region of interest. - View Dependent Claims (6, 7, 8, 14, 15, 16)
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9. A radiography system, said radiography system comprises system comprising:
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a tube and a detector disposed on opposite positions; and an image acquisition device comprising; a determination unit configured to determine a starting and an ending position of a region of interest, and a value of an overlap of the region of interest in two adjacent sub-images; a calculation unit configured to calculate a number of sub-images required to be obtained, a component of field of view at a direction of tube movement as well as a plurality of positions of the tube and the detector corresponding to each sub-image based on the starting position and the ending position of the region of interest and the value of the overlap; a capturation unit configured to move the tube and the detector to each position and to capture the region of interest to obtain sub-images at the plurality of positions; and a pasting unit configured to paste the sub-images together to form an image of the region of interest. - View Dependent Claims (10, 11, 17, 18, 19, 20)
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Specification